Terracing the Loess Plateau

to build a better future

 

 

Report to the World Bank

on a Field Assignment to

China's Second Loess Plateau Watershed Rehabilitation Project

January 18 - April 28, 1999

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Submitted by

Prof. George Y. Leung, Consultant

University of Massachusetts Dartmouth

N. Dartmouth, MA 02747

 

July 30, 1999

 

 

 

 

 

CONTENTS

 

 

1.  Background

         1.1     Introduction                                                                                   1

         1.2     Project Area Description                                                                2

         1.3     Strategy                                                                                        4

         1.4     Outlook                                                                                         6

         1.5     Assignment                                                                                   9

 

2.  Shanxi

         2.1     Introduction                                                                                 10

                  2.1.1     General                                                                           10

                  2.1.2     Project features                                                               11

         2.2     Pianguan                                                                                     14

                  2.2.1     General                                                                           14

                  2.2.2     Zijinshan subwatershed                                                    15

                  2.2.3     Bazishan village                                                               18

         2.3     Youyu                                                                                         19

                  2.3.1     General                                                                           19

                  2.3.2     Bankland                                                                        19

                  2.3.3     Zhangeryao village                                                           20

                  2.2.4     Dingjiacun village                                                             22

         2.4     Shanyin                                                                                       24

                  2.4.1     General                                                                           24

                  2.4.2     Terraces                                                                         24

                  2.4.3     Nanaogou village                                                             26

 

3.  Inner Mongolia

         3.1     Introduction                                                                                 28

                  3.1.1     General                                                                           28

                  3.1.2     Project features                                                               29

                  3.1.3     Livestock management                                                     30

                  3.1.4     Corn stalk choppers                                                         31

                  3.1.5     Engineering projects                                                         32

         3.2     Qingshuihe                                                                                  33

                  3.2.1     General                                                                           33

                  3.2.2     Water cellars                                                                   33

                  3.2.3     Tuochang village                                                              34

         3.3     Helin                                                                                           36

                  3.3.1     General                                                                           36

                  3.3.2     Luwuyao village                                                               37

                  3.3.3     A village in Woniushan project site                                    38

         3.4     Zhunger                                                                                      39

                  3.4.1     General                                                                           39

                  3.4.2     Warping dam                                                                   40

                  3.4.3     Lijiageleng collective                                                        41

                  3.4.4     Lijiageleng interviews                                                       42

                  3.4.5     Yingpanta subwatershed                                                  44

 

4.  Gansu

         4.1     Introduction                                                                                 45

                  4.1.1     General                                                                           45

                  4.1.2     Project features                                                               46

                  4.1.3     Alfalfa                                                                            48

         4.2     Huanxian, Huachi, and Qingyang                                                  49

                  4.2.1     General                                                                           49

                  4.2.2     Terraces                                                                         50

                  4.2.3     Villages                                                                           52

         4.3     Pingliang and Jingchuan                                                                54

                  4.3.1     Rain                                                                                54

                  4.3.2     General                                                                           56

 

5.  Shaanxi

         5.1     Introduction                                                                                 57

                  5.1.1     General                                                                           57

                  5.1.2     Project features                                                               58

                  5.1.3     Apple production                                                              59

                  5.1.4     Gully head protection                                                        61

         5.2     Changwu, Binxian, and Yongshou                                                 62

                  5.2.1     General                                                                           62

                  5.2.2     Farmland                                                                         63

                  5.2.3     Ditches and pits                                                               64

                  5.2.4     Xianghuagou subwatershed                                              65

                  5.2.5     Peanut roasting                                                                65

         5.3     Xunyi and Chunhua                                                                      66

                  5.3.1     General                                                                           66

                  5.3.2     Water cisterns                                                                 66

                  5.3.3     A trail blazer from Chunhua                                              67

                  5.3.4     Bees                                                                               67

                  5.3.5     Black locust                                                                     68

         5.4     Ansai, Baota, and Yanchang                                                         69

                  5.4.1     General                                                                           69

                  5.4.2     High-quality terraces                                                        70

 

 

6.  Special Topics

 

         6.1     Key dams                                                                                    71

                  6.1.1     Pianguan, Shanxi                                                              71

                  6.1.2     New key dam in Pianguan                                                72

                  6.1.3     Zhunger, Inner Mongolia                                                  73

                  6.1.4     Pingliang, Gansu                                                              74

                  6.1.5     An approach to key dam                                                  75

         6.2     Terraces                                                                                     76

                  6.2.1     Guidelines                                                                        76

                  6.2.2     Terrace design and construction procedure                        77

                  6.2.3     Competitive bidding                                                          78

         6.3     Hydrological and meteorological observation facilities                     79

                  6.3.1     Zhunger                                                                          79

                  6.3.2     Pianguan River                                                                80

         6.4     Land use rights                                                                            82

                  6.4.1     Policy on "Four Wastes"                                                   82

                  6.4.2     Land contract renewal                                                     83

 

 

Tables

 

Table 2.1   Comparison of project parameters in Shanxi

                  before and after implementation                                           13

Table 2.2   Comparison of actual statistics for Pianguan, Shanxi

                  under Loess I                                                                     16

Table 2.3   Estimated yields of main crops for Shanyin's

                  project areas                                                                       25

Table 3.1   Comparison of project parameters in Inner Mongolia

                  before and after implementation                                           30

Table 4.1   Comparison of project parameters in Gansu

                  before and after implementation                                           47

Table 5.1   Comparison of project parameters in Shaanxi

                  before and after implementation                                           59

 

 

Annexes

 

            1.      Map 1                                                                                         84

         2.      Glossary of English-Chinese equivalent terms                                85

         3.      Subject index                                                                               88

 

 

 

Future keepers of the Loess Plateau

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


1.  Background

 

1.1   Introduction

 

                                                  1.1.1

            As the First Loess Plateau Watershed Rehabilitation Project ("Loess I") initiated in 1993 is about to conclude, and encouraged by its success the same four provinces participating in Loess I, namely, Inner Mongolia, Shanxi, Shaanxi, and Gansu, negotiate a similar arrangement with the World Bank for the Second Loess Plateau Watershed Rehabilitation Project ("Loess II"), due to commence in 1999. 

            Loess II is modeled after Loess I both in scope and features with the intention to extend the benefits achieved in Loess I to a larger segment of the population who subsists near the poverty level, and to a larger area of erosion-degraded land.  These projects serve both the purposes of poverty alleviation as well as environmental revitalization. 

 

 

 

                                                  1.1.2

            As shown by rapid increase in farmer's income and noticeable decrease in the region's water and soil loss, significant benefits had been achieved in Loess I almost as soon as the project was implemented, fully justifying the initial appraisal that the area has high potential for development.  Old mud huts and cave dwellings, shown in (1.1.1), are giving way to new brick houses, shown in (1.1.2).  These scenes are common in Loess I project areas in Inner Mongolia.  Added incomes not only allow them to improve on their dwellings but also afford them to purchase motorized vehicles to expand their productive enterprises into transportation, construction, and commerce. 

            The enthusiastic response of the farmers to project activities is most encouraging.  Their trust for the success of th